Eitoku was a soratami bushi from Kamigawa, who was set on a task in Numai together with his shinobi partner by Chiyo. When dealing with Marrow-Gnawer and his nezumi, they were interrupted by Toshi Umezawa. In the following fight, Eitoku was seriously wounded when his attempt to stab Toshi through the chest was reflected by Toshi's kanji back to him. Eitoku was later seen in Otawara, alive and healed, arguing with Chiyo. His further fate is unknown, though it is possible that he perished during the oni's onslaught on Otawara or during the Jukai campaign.